Dryer was missing the grounding ball and making a loud squeal

First I located the two clips holding the top of the machine on and opened the top of the dryer. I then disconnected the two wires on the door switch and removed the two screws holding the front panel on. After removing the front panel, I vacuumed all the loose lint and as far into the lint trap as possible. I then removed the back vent panel and released the drum belt from the pulley. I pulled the drum out of the support bearing. Then I removed two screws holding the drum support bearing, bracket, and grounding ball clip. I replaced the grounding ball and drum support bearing with new parts, (as the drum support bearing was damaged without the grounding ball). Then I reversed the order and put the dryer back together. Overall I felt the job was easy and I'm happy to be able to use a quiet machine again!!!